Generac Standby Generator Protector Series 38kW
Thousands of homeowners and business owners trust their Protector Series automatic backup generator to power their entire home or business during a power outage. A Protector Series generator senses a power outage, turns on automatically, and delivers power for your entire home, including all large appliances and sensitive electronics. Sound levels are quieter with no change in level or tone. This allows you to continue living life comfortability and keep business operating without interruption.
Quiet-Test™ Mode: Runs at a lower, quieter speed for a five-minute test to ensure the system is running properly while consuming less fuel. Quiet-Test mode can be programmed to run weekly, biweekly, or monthly.
Cellular Connectivity: Reliable, constant connection enables the Generator Owner to monitor function using Mobile Link and the supporting Generator Servicer using Fleet.
TruePower™ Technology: Delivers superior power quality with less than 5% total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.
Surge Capacity: Designed to start and power large electrical loads for homes and businesses.
Corrosion Resistance: Analuminum enclosure; electro-galvanized steel and aluminum frame components; and a stainless-steel exhaust system provide years of corrosion protection in extreme environments.
Small Footprint: Generac liquid-cooled generators pack more power into a small footprint – ideal when space is a premium. The neutral styling, color and small footprint fits unobtrusively into landscaping.
24/7/365 Customer Support Team: Standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have.
Single-Side Regular Maintenance: Regular maintenace for oil & oil filter, air filter, spark plugs, coolant, and battery are all accessible from one side of the generator making it easier while saving time.
Generac Designed & Built Engine: Purpose-built exclusively for generator use. Utilizes the first in class, dual-valve ultra-low pressure fuel delivery system and intelligent proprietary engine controls that manage over 100 performance functions to ensure peak efficiency in all temperature ranges and elevations.
Built in the USA*: Generac generators and engines are engineered and built in the USA* *Assembled in the USA using domestic and foreign parts.
24/7/365 Customer Support Team: Standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have.
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Generac Standby Generator Protector Series 38kW
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Home Energy, Reimagined
From Standby Generators that power your home during outages, to Portable Solutions built for flexibility, to Smart Batteries like Tesla and Lion Energy, and Accessories that complete your setup — our collections bring you energy independence, reliability, and innovation.
FAQs
Please read our FAQs page to find out more.
What’s the difference between a standby generator and a portable generator?
A standby generator is permanently installed outside your home and automatically powers your entire house during an outage. Portable generators are smaller, movable, and best for running essentials or outdoor needs.
How do I choose the right generator size?
Start by calculating the wattage of the appliances you want powered. Smaller homes may need 10–14 kW, while larger homes often require 18–26 kW or higher. Portable units range from 2,500–18,000 watts.
Do generators need professional installation?
Standby generators require professional installation with a transfer switch for safety and compliance. Portable generators typically do not — they can be set up manually with extension cords or an inlet box.
What fuel options are available?
Most standby generators run on natural gas or liquid propane. Portable units are available in gasoline, dual-fuel (gas/LP), tri-fuel (gas/LP/natural gas), and diesel.
Do Generac generators come with warranties?
Yes — Generac offers a 5-year limited warranty on residential standby models, with extended options available. Portable models also include manufacturer warranties.
How do I choose the right generator size?
Start by calculating the wattage of the appliances you want powered. Smaller homes may need 10–14 kW, while larger homes often require 18–26 kW or higher. Portable units range from 2,500–18,000 watts.
What’s the benefit of a home battery system?
Home batteries store solar or grid power for backup use, reduce reliance on the grid, and can help lower energy bills by shifting usage to off-peak times.
Can Mango Power and Lion Energy batteries power my whole home?
Yes. Mango Power systems offer whole-home backup with modular expansion. Lion Energy’s batteries are stackable, making them ideal for growing energy needs.
Do batteries work without solar?
Yes. While batteries integrate perfectly with solar, they can also charge directly from the grid to provide backup during outages.
What warranties do home batteries include?
Tesla, Mango Power, and Lion Energy all offer 10-year limited warranties, ensuring long-term performance.